<template>
  <div :class="className" :style="{height:height,width:width}"/>
</template>

<script>
  import echarts from 'echarts'

  require('echarts/theme/macarons') // echarts theme
  import {debounce} from '@/utils'

  export default {
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
        default: '300px'
      },
      chartData: {
        type: Object
      }
    },
    watch: {
      chartData(value) {
        this.initChart();
      }
    },
    data() {
      return {
        chart: null,
      }
    },
    mounted() {
      this.initChart()
      this.__resizeHandler = debounce(() => {
        if (this.chart) {
          this.chart.resize()
        }
      }, 100)
      window.addEventListener('resize', this.__resizeHandler)
    },
    beforeDestroy() {
      if (!this.chart) {
        return
      }
      window.removeEventListener('resize', this.__resizeHandler)
      this.chart.dispose()
      this.chart = null
    },
    methods: {
      initChart() {
        this.chart = echarts.init(this.$el, 'macarons')
        this.chart.setOption({
          tooltip: {
            trigger: 'axis'
          },
          legend: {},
          toolbox: {
            show: true,
          },
          xAxis: {
            type: 'category',
            boundaryGap: false,
            data: this.chartData.name
          },
          yAxis: {
            type: 'value'
          },
          series: [
            {
              data: this.chartData.data,
              type: 'line',
              smooth: false,
              itemStyle: {
                normal: {
                  color: "#1bdaf8", //折线点的颜色
                  lineStyle: {
                    color: "#03d193" //折线的颜色
                  }
                }
              },
            }

          ]
        })

      }
    }
  }
</script>
